Pivoting window locking devices

ABSTRACT

This locking device for holding a pivoting window, notably of a motor vehicle, in its closed, ajar or semi-open positions, comprising a torsion bar hinge along one side and on the opposite side said locking device, consists essentially of a three-lug member pivotally mounted about an axis parallel to said opposite side to the window frame, a first lug acting as a control lug, the second lug being substantially perpendicular to said first lug and adapted to retain the window ajar, the third lug acting as an intermediate locking lug driven with a moderate clearance and adapted to retain the window in its closed position, and resilient means normally urging said third lug in its locking position.

United States Patent 11 1 [111 3,781,644 Ques nel et al. Dec. 25, 1973 [54] PHVOTHNG WINDOW LOCKING DEVICES 2,790,688 4/1957 Shepherdson 292/228 X Inventors: Marcel Q J e ot 3,722,935 3/ 1973 Latlb 292/DlG. 6

of Blnancourt France Primary Examiner-Geo. V. Larkin [73] Assignees: Regie Nationale des Usines Renault, Att0meyRichard K. Stevens et al.

Billancourt; Automobiles Peugeot,

Paris, France 7 ABSTRACT Filedi May 1972 This locking device for holding a pivoting window, no- [211 App] 249 145 tably of a motor vehicle, in its closed, ajar or semiopen positions, comprising a torsion bar hinge along one side and on the opposite side said locking device, [30] Foreign Application Priority Data consists essentially of a three-lug member pivotally May 10, 1971 France 7116773 mounted about an axis parallel o a pp Side to the window frame, a first lug acting as a control lug, [52] US. Cl. 292/200, 292/DIG. 6 the Second lug being substantially perpendicular to [51] lint. Cu. E05c 3/06 said fi t g and adapted to retain the window j [58] Field of Search 292/DlG. 6, DIG. 7, the third lug acting as an intermediate locking lug 292/DlG. 20, 205, 200, 228 driven with a moderate clearance and adapted to retain the window in its closed position, and resilient [56] References Cit d means normally urging said third lug in its locking po- UNITED STATES PATENTS S 2,830,843 4/1958 Seaburg et a1. 292/DlG. 20 7 Claims, 6 Drawing Figures PATENIEI] DEC 25 1915 3, 78 1, 04

- SHEET. 10F 2 FIG- 2 PAIENIEDuac 25 I915 @7 1; 044

sum 2 UP 2 PIVOTING WINDOW LOCKING DEVICES The present invention relates in general to means for locking tilting or pivoting windows in both closed and ajar or partly-open positions, notably in automotive vehicles.

A known and very popular device of this type comprises a pair of hingedly interconnected links registering with the pivot axis of the window. The folded positions of this pair of links corresponds to the closed position of the window, and when the links are spread to their unfolded position the window is set ajar.

One known inconvenience of this device lies in the fact that it prevents a complete opening of the window and also that access to the latter is difficult, for instance when it is desired to clean or remove the window. On the other hand, the two hingedly interconnected links of this known device, which are adapted to be locked many times in the folded position as well as in the spread or open position, must be of very good quality and are therefore expensive to manufacture.

These inconveniences can be avoided with the device of this invention which is characterised in that it comprises resilient means for urging the window to its closed position, a lock having three lugs pivoted about an axis parallel to the plane of the window and comprising a first control lug adapted, when rotated, to rotate in turn on the one hand another lug for setting and retaining the window ajar, said last-named lug being substantially perpendicular to the first lug, and on the other hand, with a moderate play, a third intermediate locking lug engaged by the window in the closed position thereof, and other resilient means urging said locking lug to its locking positions.

The means for resiliently urging the window to its closed position comprise a torsion bar disposed along one edge of the window which is opposite to said locking device.

A spring blade bent twice in opposite directions and substantially at right angles comprises an opening adapted to co-act with a heel projecting from the locking lug in the closed-window position.

Another heel provided on said locking lug is adapted to co-act with said spring blade for locking the window.

The locking lug comprises another projection engageable by the spring blade for locking the device in the semi-open position, and further comprises a notch receiving one portion of the spring blade in the release position.

Thus, the window can be kept at will in its closed position or ajar, and also opened competely by effecting very simple manoeuvres. Moreover, the material and elements necessary for manufacturing this device are extremely economical.

The invention will now be described with reference to the accompanying drawing in which:

FIG. I is an elevational view showing a window equipped with the locking device of this invention FIG. 2 is a section taken along the line ll-Il of FIG. 1

FIGS. 3 to 6 are views similar to FIG. 2 but showing on a larger scale the locking device in its closed position, release position, ajar position and window-release position, respectively.

Referring first to the form of embodiment illustrated in FIG. l, the window. 1 is of substantially triangular configuration with rounded corners. On one side, e. g.

side 2, it comprises a pair of hinges 3, 4 and a torsion bar 5 covered with a sheath 6 and having its ends 7 and 8 bent in opposite directions. This torsion bar constantly urges the window to its closed position. A locking device 9 is secured to the window frame, opposite said torsion bar, by means of a bracket or like support It). This locking device 9 illustrated in section in HO. 2 comprises a control lug 11 adapted to rotate about an axis 12.

In FIG. 3 it will be seen that the lug 11 is bent to provide another lug 13 for partially opening the window I. A third lug referred to as the locking lug 14 is also adapted to rotate about the axis 11 and is slightly offset in relation to the other lugs 11 and 113, due to a moderate clearance required for the release movement. Substantially in alignment with the control lug II is a heel I5 rigid with said locking lug l4 and adapted to engage an opening 16 formed in a spring blade 17 secured to the bracket or like support 10. This spring blade comprises a first flat section in which said opening 16 is formed, and is then bent twice in opposite directions and substantially at right angles; the remaining or anchoring portion 18 of this spring is flat. The locking lug 14 is characterised by a face 20 adapted to engage the window and by a notch 21 followed by a projection 22 and another notch 23. The rear or inner portion of lug 13 comprises a heel 24.

As seen in FIG. 3, the window I is adapted to be moved and held in the closed position by simply depressing the lug 11 in a direction of the arrow f thus causing the locking lug 14 to rotate and engage with its end 20 the window I. The heel I5 is thus caused to engage opening 16 so that the spring blade can be lowered and the window closed completely.

When the control lug II is pulled in the direction of the arrow f (FIG. 4), the release position shown in this figure is obtained. The rotation of lug ll about the pivot 12 is also attended by the rotation of heel 24 which lifts the blade 17 and notably the opening 16, thus releasing the heel 15 of locking lug 14 then held against rotation.

Continuing the rotation of lug 11 in the direction of the arrow f will set the window ajar as shown in FIG. 5. The heel 24 engages the shoulder formed by the two elbows of spring blade 17 of which the flat portion 18 engages projection 22. The ajar holding lug I3 is then properly applied to the top edge of the window so as to retain it in this partially opened position.

Finally, continuing the rotation of lug i 1 until the latter is in a substantially horizontal position causes the window to be released completely, as shown in FIG. 6.

The lower elbow of blade 17 will thus engage the notch 23. Lug 13 moves the window 1 away and permits the release thereof since, during its rotation, the lug 14 moves away from the area in which it could engage the window 1 during the rotation of this window.

The reverse sequence of steps is obtained by lowering the control lug 11 and rotating same in the direction of the arrow f, (i.e. clockwise, as seen in FIGS. 2 to 6).

It will readily occur to those conversant with the art that various details and proportions may be modified and changed in the specific form of embodiment shown and described herein, without inasmuch departing from the basic principle of the invention as set forth in the appended claims.

What is claimed as new is:

1. Device for locking a pivoting window in its closed position and in a partly open or ajar position, characterised in that it comprises resilient means for urging the window to its closed position, a three-lug locking member pivoted about an axis parallel to the plane of said window and comprising a control lug adapted when rotated to cause the simultaneous rotation of the one hand of a second lug adapted to retain the window in the ajar position, said second lug being directed substantially at right angles to said control lug, and on the other hand of a third intermediate locking lug driven with a moderate clearance, against which the window is pressed in the closed position, and a resilient member normally urging said locking member to its locking position.

2. Locking device according to claim 1, characterised in that the resilient means for urging the window to its closed position comprises a torsion bar disposed along one edge of said window which is opposite to said locking member.

3. Locking device according to claim 1, characterised in that said resilient member comprises a spring blade bent twice substantially at right angles and in opposite directions.

4. Locking device according to claim 1, characterised in that said spring blade comprises an opening adapted to co-act with a heel formed integrally with said locking lug in the closed position of said window.

5. Locking device according to claim 1, characterised in that the lug adapted to set the window ajar comprises an integral heel adapted to co-act with the spring blade for releasing the window.

6. Locking device according to claim 1, characterised in that said locking lug comprises a projection engaged by said spring blade for locking the device in the ajar position.

7. Locking device according to claim 1, characterised in that said locking lug has formed therein a notch engageable by said spring blade in the window release position. 

1. Device for locking a pivoting window in its closed position and in a partly open or ajar position, characterised in that it comprises resilient means for urging the window to its closed position, a three-lug locking member pivoted about an axis parallel to the plane of said window and comprising a control lug adapted when rotated to cause the simultaneous rotation of the one hand of a second lug adapted to retain the window in the ajar position, said second lug being directed substantially at right angles to said control lug, and on the other hand of a third intermediate locking lug driven with a moderate clearance, against which the window is pressed in the closed position, and a resilient member normally urging said locking member to its locking position.
 2. Locking device according to claim 1, characterised in that the resilient means for urging the window to its closed position comprises a torsion bar disposed along one edge of said window which is opposite to said locking member.
 3. Locking device according to claim 1, characterised in that said resilient member comprises a spring blade bent twice substantially at right angles and in opposite directions.
 4. Locking device according to claim 1, characterised in that said spring blade comprises an opening adapted to co-act with a heel formed integrally with said locking lug in the closed position of said window.
 5. Locking device according to claim 1, characterised in that the lug adapted to set the window ajar comprises an integral heel adapted to co-act with the spring blade for releasing the window.
 6. Locking device according to claim 1, characterised in that said locking lug comprises a projection engaged by said spring blade for locking the device in the ajar position.
 7. Locking device according to claim 1, characterised in that said locking lug has formed therein a notch engageable by said spring blade in the window release position. 